Description: Interface introduction: 1. Button S2: reset button 2. Debugging interface: used for downloading, simulation debugging 3. Startup configuration mode: Select the startup mode when the chip is powered on by configuring BOOTO/1 4. USB-A port: USB communication interface of the main chip, with Host and Device functions 5.TYPE-C port: USB communication interface of the main chip, with Host and Device functions 6.Power indicator light 7. LED1, LED2 cathode pins: can be connected to the chip IO port through wire for control. development environment IDE use-MounRiver Download MounRiver_Studio, double-click to install, and you can use it after installation. For development routines and IDE usage instructions, please refer to the official documentation of Qinheng Microelectronics. Download instructions WCH-LINK download Using this method requires a WCH-Link downloader, which can be downloaded and debugged online and is easy to use. to use WCH-LINK, you first need to install MounRiver IDE, and then install the USB driver. the driver path is MounRiver/MounRiver_Studio/LinkDrv/Link. size: 48mm x 58mm Material: PCB colour: Navy blue Package Contents: 1 x CH32V103R_MINI Development Board 1 x 14 Double Rows of Pin 1 x 15 Double Rows of Pin 1 x 5 Double Rows of Pin 1 x Jumper Cap Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Mini Development Board Industry Control Board